Color Picker Meta Box

Was just looking for the same thing. Was considering attempting to add the type to the Custom Meta Box field Type of Norcross/Atchison/Erickson fame found at https://github.com/jaredatch/Custom-Metaboxes-and-Fields-for-WordPress.

… but then discovered that my other favorite metabox class already had the type defined in there. The author’s name is Tran Anh and the page to refer to is located at https://www.deluxeblogtips.com/meta-box . The demo on the page shows a picture of what the color picker would look like.